Approval of the preliminary and final plats of a subdivision shall expire ninety (90) days from the date of County Board approval, unless within such a period, a plat in conformity with such approved subdivision is filed with the County Recorder. The Plat Officer may, for good cause, extend the period for recording not to exceed one hundred eighty (180) days from the approval of the plat by the County Board. (Ord. 10-001, 1-12-2010)